Introduction

A quick recap

By now you should have a good understanding of the basic concepts of RxJava. We covered the building blocks of the 3 Os: the Observer, and the Operator. We’ve also looked at several functional style operations in the RxJava toolkit that transform, combine and aggregate emissions from an Observable until we receive our desired result. You should now also have a pretty good sense of how RxJava can simplify dealing with concurrent processes inherent in developing mobile apps through the use of a Scheduler. Collectively, these tools allow us to program in Android in a way that is declarative over the traditional imperative approach.